Finish implementation of automatic media file back up list generation

[UPLYNXED]

Potentially making use of the newer substituteMedia() function to make sure we grab the highest quality media.

1. Write function to get all of the media of at least the main user account in a list
2. Write function to go through the list and download the media

• Make sure the media is successfully downloaded
• If not, store the list of unsuccessful downloads and try again later until the list is done.

[UPLYNXED]

Note:

• Make sure to include imgur.com media if possible since they are also purging old media